Judge fault in the high frequency head and related control circuit. This machine high frequency head for frequency synthesis type, models for ECAllX2, ll foot vertical structure. Check 32 v voltage stability, high frequency head pet-name ruby feet 6 feet 9 v voltage, and (2) feet VT fluctuations in voltage by leaps and bounds, then run, with the oscilloscope observation was PWM has 5 vp - P stable pulse width modulation wave. Remove the high frequency head, with table Rxl0k FM47 type red pens and pick up shells, black pens and (2) feet measurement, resistance at 200 k Ω and swinging, the internal leakage of high-frequency head or bad. Rrgservice manual download site
 Rrgservice manual download site
Open the high-frequency head cover and found a similar rosin flux components around the solder joint, doubt this leakage. High-frequency head to be included in the alcohol solution soak 5 minutes later, with a brush dipped in alcohol scrub circuit boards, dry with hair dryer, measurement (2) feet of resistance increases to 1 m Ω and stable, the high frequency head back to the commissioning, the TV back to normal.Rrgservice manual download site